50 service error (151 Views)
Occasional Visitor
Posts: 1
Registered: ‎08-27-2012
Message 1 of 3 (151 Views)

50 service error

i have an old HP LaserJet 4 Plus printer

working fine until a hour ago


now on the display I have a '50 service' message

what is it , how can I fix it?


i've turned off the power/pulled the plug

but it still came back


Please,  any help !!


Trusted Contributor
Posts: 189
Registered: ‎08-09-2010
Message 2 of 3 (147 Views)

Re: 50 service error

That is a fuser unit malfunction the part that fuse the toner into the paper by applying heat and pressure. Easy to replace by opening the rear door and removing 2 screws.

Good luck

Outstanding Contributor
Posts: 15,887
Registered: ‎02-27-2006
Message 3 of 3 (115 Views)

Re: 50 service error

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